michael@0: // Don't eliminate a phi if it has no SSA uses but its value is still
michael@0: // observable in the interpreter.
michael@0: var t = 100;
michael@0: function foo(ox) {
michael@0:     var x = ox;
michael@0:     var n = 0;
michael@0:     for (var i = 0; i < 90; i++) {
michael@0:         n += x.f.g;
michael@0:         if (i >= 80)
michael@0:             t;
michael@0:     }
michael@0: }
michael@0: function f() {}
michael@0: function g() {}
michael@0: f.prototype = {f:g};
michael@0: foo(new f());